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2014 | 126 | 1 | 122-123
Article title

Magnetoimpedance Effect in Field Annealed (FeNi)_{78}Nb_{7}B_{15} Amorphous and Nanocrystalline Bilayer Ribbons

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Abstracts
EN
The influence of the magnetic field annealing on the magnetoimpedance effect has been investigated in rapidly quenched (Fe_{0.5}Ni_{0.5})_{78}Nb_{7}B_{15} monolayer and bilayer thin ribbons. The highest impedance ratio value (ΔZ/Z)_{max}=72% and the maximum field sensitivity η_{max}=12 %/Oe was obtained in the bilayer ribbon, annealed under longitudinal magnetic field at 773 K that exhibited nanocrystalline structure. The higher values of (ΔZ/Z)_{max} in bilayer ribbons, as compared to their monolayer counterparts, are attributed to the increased ratio of their thickness to the penetration depth.
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Contributors
author
  • Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
author
  • Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
author
  • Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
  • Institute of Physics SAS, Dúbravska cesta 9, 845 11 Bratislava, Slovakia
author
  • Institute of Physics SAS, Dúbravska cesta 9, 845 11 Bratislava, Slovakia
  • Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
References
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bwmeta1.element.bwnjournal-article-appv126n1057kz
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